*{
    margin: 0;
    padding: 0;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
a{
    text-decoration: none;
}
.clearfix:before,
.clearfix:after{
    display: block;
    content: "";
    clear: both;
}
/*header部分*/
header,header a{
    color: #eaf5fb;
}
header{
    background: #5eb7e3;
}
.container{
    width: 870px;
    margin:0 auto;
}
.wn{
    width: 33.333333%;
    float: left;
}
nav div:nth-child(1){
    height: 10px;
}
nav div:nth-child(2){
    text-align: center;
    margin-top: 11px;
}
nav div:nth-child(3){
    text-align: right;
    margin-top: 23px;
}
.header{
    margin-top: 80px;
}
.header-left,.header-right{
    width: 50%;
    float: left;
}
.header-left p{
    font: 17px/12px Arial;
    font-weight: bold;
    margin-bottom: 11px;
}
.header-left h1{
    font-size: 34px;
}
.header-left a{
    background-color: #2996cc;
    padding: 15px 54px;
    border-radius: 3px;
    display: inline-block;
    margin-top: 20px;
    transition: 1s;
}
.header-left a:hover{
    background-color: #177bcc;
}
.header-right img{
    width:  100%;
    display: block;
}
.img1{
    display: none;
}
/*section样式*/
section{
    margin-top: 60px;
}
.main-top{
    margin-bottom: 62px;
}
.wn1{
    width: 25%;
    float: left;
    text-align: center;
    padding-left: 20px;
    padding-right: 20px;
}
.wn1 h3{
    font: 13px/10px Arial;
    font-weight: bold;
    margin-top: 15px;
    margin-bottom: 10px;
    color: #2e3b4e;
}
.wn1 p{
    font: 12px Arial;
    color: #6e7889;
}
.main-bottom{
    text-align: center;
    margin-bottom: 60px;
    border-top: 1px solid #e0e0e0;
    padding-top: 62px;
}
.main-bottom h2{
    font: 29px Arial;
    margin-bottom: 30px;
}
.main-bottom p{
    font: 14px Arial;
    margin-bottom: 35px;
}
.main-bottom img:nth-child(1){
    padding-right: 15px;
}
/*footer样式*/
footer{
    background: #1b2126;
    color: #5a656c;
    font: 14px/12px Arial;
    padding-top: 65px;
    padding-bottom: 65px;
}

@media (max-width: 600px) {
    .container{
        width: 90%;
    }
    nav{
        width: 100%;
        text-align: center;
    }
    .header-left{
        width: 100%;
        text-align: center;
        margin-bottom: 30px;
    }
    .header-left h1{
        font-size: 27px;
    }
    .header-right{
        width: 100%;
        text-align: center;
    }
    .header-right img{
        width: 80%;
        /*margin-left: 28px;*/
    }
    .span1{
        display: none;
    }
    .img1{
        display: inline-block;
    }
    .main-top{
        width: 90%;
        margin: auto;
    }
    .wn1{
        width: 100%;
        text-align: center;
    }
    .main-top div:nth-child(1),
    .main-top div:nth-child(2),
    .main-top div:nth-child(3){
        margin-bottom: 66px;
    }
    .main-top{
        margin-bottom: 67px;
    }
    .main-bottom{
        width: 90%;
        margin: auto;
        margin-bottom: 50px;
    }
    .p{
        width: 100%;
        text-align: center;
    }
    .p1{
        width: 90%;
        margin: auto;
    }
    .p a{
        width: 38%;
        margin:0 auto;
        display: inline-block;
    }
    .p a img{
        width: 100%;
        text-align: center;
    }
}